SIP Panels UK | Certified Structural Insulated Panels | Herefordshire
Family-run SIP panel supplier in Herefordshire. STA Gold certified panels for garden rooms, extensions & new builds. Fast lead times. UK-wide delivery.
About Us
House Kits
Garden Rooms
Extensions
Annex

a local SIPs supplier for Herefordshire, Monmouthshire, and nearby counties | RD Sips

Welcome to RD SIPs, a modern, family-run supplier of certified Structural Insulated Panels (SIPs) based in Herefordshire. We support homeowners, self-builders, and trade customers across the UK with SIP panels and complete kits for garden rooms, house extensions, and new build projects, all backed by professional certifications and a practical, helpful approach.

RD SIPs was founded for a simple reason: when our director needed SIPs for his own extension, the big players were not interested in smaller jobs, and the smaller providers were charging a fortune. We built RD SIPs to bridge that gap, giving you the quality and compliance you would expect from a major manufacturer, with the personal service and flexibility of a family-run business.

Whether you are planning a compact garden studio or a full house build, we will guide you through the process with clear advice, honest lead times, and real technical support. Our goal is to make thermally efficient, sustainable building easier, with panels designed to perform, fit properly, and help your project move forward with less stress.

What comes in our standard kits? :

  • Floor SIP panels (if the design uses a SIP floor) cut to plan
  • External wall SIP panels cut to elevations (incl. corners and junction details)
  • Roof SIP panels (flat or pitched, depending on design)
  • Openings pre-formed / set out for things like doors, windows, and (commonly) bifolds on extensions
  • Connection/joining components (e.g., splines/junction timbers as required by the panel system/design)
  • A panel layout / install pack (drawings that show what each panel is, where it goes, and the build sequence)
  • Technical guidance/support (how to handle, dry-fit, fix, foam/glue, and weather-proof during install)

What is NOT typically included in our kits :

  • Foundations / groundworks
  • Windows, doors, roof coverings (membranes, tiles, EPDM, etc.)
  • Internal finishes (plasterboard, flooring finishes, decorating)
  • External cladding / render systems
  • Electrics, plumbing, HVAC
  • Cranage / install labour (unless you’re explicitly offering install)
  • Scaffold/access equipment
  • Delivery (often priced separately based on location)

Ready To Start Your New SIP Adventure

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RD SIPS was founded to fill a gap in the UK market: affordable, reliable SIP panel suppliers for smaller projects without compromising on quality. As a family-run business based in Herefordshire, we deliver the professional certifications of large manufacturers with the flexibility and personal attention you won’t find elsewhere.

Our polyurethane-bonded (PUR) SIP panels deliver exceptional thermal performance with U-values as low as 0.13, meeting and exceeding UK building regulations. Every panel is dry-fitted in our workshop before delivery, reducing on-site errors and ensuring your project runs smoothly.

Our Certifications:

  • Structural Timber Association (STA) Member

  • CAT G: SIP Mark Systems

  • ISO 9001 Certified

  • FSB Member

  • STA Assure Gold

  • Made in Britain

Garden Rooms & Studios

Create the perfect garden office, gym, or studio with our certified SIP panels. Typical 30 sqm projects include floor, wall, and roof panels for fast, energy-efficient construction. Delivered in 1-3 weeks.

Ideal for: Home offices, garden studios, hobby rooms, gyms

House Extensions

Transform your home with thermally efficient extensions. Our 172mm wall panels achieve U-values of 0.15, with specialist support for pitched roofs and large openings for bifold doors. Typical 21 sqm extensions ready in 2-4 weeks.

Ideal for: Kitchen extensions, living space additions, multi-storey extensions

Annexes & Granny Flats

Build self-contained living spaces with our 50 sqm SIP panel kits. Full technical support for planning permission and building regulations compliance. Lead time: 2-4 weeks.

Ideal for: Granny annexes, guest accommodation, rental units

New Build Houses

From 100 sqm homes to 10-bedroom properties with complex designs and curved roofs. Our team handles multi-level floor plans and custom fabrication. Lead time: 4-12 weeks depending on complexity.

Ideal for: Self-builds, developer projects, holiday lodges, eco-homes

Commercial Projects

Scalable SIP panel solutions for commercial construction. Fast installation, superior insulation, and full certification for building control approval.

Ideal for: Offices, retail units, hospitality buildings, storage facilities

Superior Thermal Efficiency

Our 147mm wall panels achieve U-values of 0.18, exceeding UK building regulations. PUR insulation is auto-bonded to prevent delamination and maintain long-term performance.

Environmental Benefits

  • Zero on-site waste – Precision-cut panels reduce material waste

  • 45% more CO2 savings compared to traditional stick framing

  • 5.1-year energy payback – Faster return on investment

  • 3.8-year greenhouse gas payback – Lower environmental impact

Fast, Reliable Lead Times

  • Stock panels: 5 days

  • Garden room kits: 1-3 weeks

  • Extension kits: 2-4 weeks

  • House projects: 4-12 weeks

We maintain transparent scheduling and prioritize stock to keep your project on track.

Expert Technical Support

Our team provides comprehensive support throughout your project:

  • Design consultation and cost-effective building methods

  • Planning permission guidance

  • Installation training for first-time SIP users

  • On-site support when needed

  • Detailed installation packs with weather considerations

Quality Guarantee

  • 1-year warranty on all panels

  • 10-year warranty on builds under building regulations (via installing contractor)

  • Full traceability and regular audits

  • Customer issues resolveds

We supply and deliver SIP panel kits across the entire UK. Remote deliveries are coordinated using small trucks or trailers, with access routes verified via Google Maps. Crane hire and special equipment arranged as needed.

High-volume areas: North London, Reading, and expanding throughout Herefordshire and the Midlands.

Delivery pricing: Calculated by location with transparent quotes.

An image of the following logos: ISO certified 9001 / 2015, Structural timber association, STAV assure Gold, FSC, CATG SIP mark, Fsb member, CE logo
RD Property Ltd T/A (RDSIPS)
Unit 7B Westwood Industrial Estate
Pontrilas HR2 OEL
Vat Reg No 273668565
Company number: 10781626
Phone: 01981 570747